Improvement in hinges



` EDWIN D. NORTON, OF CUBA, NEW YORK.

IMPRovEMENT IN HINGES.

Specification forming part ofLetters Patent No. 115,509, dated May 30, 1871.

" To `all whom it may concemf Be it known `that I, EDWIN D. NORTON, of Cuba, in the countyof Allegany and State of New` York, 4have invented an Im proved Door 'f d and Gate Hinge 5 andI do hereby declare the following to be a full, clear, and exact descripf .tion of `the. same, reference being. had to the accompanying drawingqforming part of this specification, inwhich l l Figure lis" an elevation of my improved hinge, showing its position when closed, Fig. 2' is a similar view, showingits position when leaf. l

Similar letters of reference in the accompanying drawing denote corresponding parts.

My invention relates to that. class of hinges for doors and gates in which inclines are emopen; and Fig. 3' is aplan view of the lower .ployed upon eachlllleafLso arranged that the gate shall close bytits'own gravity; and the i 'invention consists in constructing the hinge with double inclines of unequal base upon each leaf, the apex of the widest inclines being cut off at an angle, so that when the gate is opened it shall beheld-in such position Without being locked.

N The employment of singleinclines upon `hinges of this class isobjectionable, for the reason that they throw the entire Weight of the gate upon the hinge-pintles, which are conl sequently liable t become broken and thus destroy the whole hinge. By my invention the pintles are relieved of all lateral strain, and serve 'simply as guides to hold the inclines against each other, While` by theernployment of inclines of unequal base the Whole Weight` of the gate is supported by the single bearing-surface of thewide inclines, and is held open without being locked; consequently the necessity of liftingit preparatory to closing is avoided. l

In the drawing, the fixed and swinging which register with each other when the gate is closed, as shown in Fig. 1. rllhe inclines O form an acute angle at their apex, while the inclines G are made broader at their base, and with the apex of each cut cli' at an angle, as seen at d d.

When the hinge is operated the inclines of one leaf work in contact with their corresponding inclines on the opposite leaf. By this arrangement thepintle is relieved of all strain, serving as a guide simply for the inclines. The gate being swung vopen the inclines bear against each other, and the leaf A moves upward until the ends of the inclines C C are reached, when the upper one rests upon and is supported by the lower one, as shown. at d d', Fig. 2. The surfaces d and d! do not form an exact right angle with the axis of the pintle, but are Vinclined slightly to prevent the parts from slipping, and thus hold the gate open. The slides e of the inclines may be either parallel to the axis of the pintle or slightly inclined therefrom, as preferred. It is not designed, however, that the surfaces e shall come in contact while the hinge is being operated.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

The combination of the pintle B, the perpendicular or nearly perpendicular offsets c e, the inclines of Vdilerent angles upon bases of dif ferent widths, and the bearingsurfaces d d', sustaining the entire Weight of the gate when open, substantially as herein described.

Witnesses: EDWIN D. NORTON.

NATHAN K. ELLswoRTH, EDM. F. BROWN. 

